Charles c



(No Model.)

0. o. MOORE. WATER FILTER.

No. 565,416. Patented Aug. 4,1896.

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UNITED STATES CHARLES O.

PATENT OEEIcE.

MOORE, OF SAN'FRANOISOO, CALIFORNIA, ASSIGNOR TO FERDINAND L. VANDEMARK, OF SAME PLACE.

WATER-FILTER.

SPECIFICATION forming part of Letters Patent No. 565,416, dated August4, 1896. Application filed geptember 1'7, 1895. Serial No. 562,800. (Nomodel.)

To a/ZZ whom, it may concern.-

Be it known that I, OHARLEs O. MOORE, a citizen of the United States,residing in the city and county of San Francisco and State ofCalifornia, have invented certain new and useful Improvements inWater-Filters, of which the following is a specification.

This invention relates to improvements in filtering attachments forwater-faucets, and the same consists in certain novel parts andcombination of parts producing an improved filtering device forwater-faucets that has several useful features of construct-ion andoperation, as hereinafter set forth.

The following description explains at length the nature of my saidimprovements and the manner in which I proceed to produce, carry out,and apply the same, reference being had to the drawings that accompanyand form part of this specification.

Figure 1 of the said drawings represents my improved filter inelevation, with the outer shell or body broken away to expose the partsinside. Fig. 2 is a top view. Fig. 3 is a vertical sectional view of theshell or body, with one of the filtering-cylinders set in the body. Fig.4 is a view in cross-section of the removable screw-coupling on the topof the filter-body. Fig. 5 is a similar detail view of the removablenozzle on the bottom of the filter-body. Figs. 6 and 7 are elevations ofthe removable cylinders or tubes. Fig. 8 is a view in detail of thefiltering diaphragm that is inserted in the filtering cylinder,illustrating the manner of forming the same. Fig. 9 is a view on anenlarged scale of one of the filtering-cylinders and its internaldiaphragm, the body of the cylinder bein g broken away at the upper partto show the internal construction and arrangement of the diaphragm.

A indicates a spherical shell with openings a in either side, and B Blong and relatively narrow cups or cylinders with closed inner ends 1?,setting into the filter-body A through such openings from opposite ends,

the closed bottoms of such cylinders being set into the chamber in suchspherical shell.

0 O are screw-threaded necks standing out from the spherical body on thetop and the bottom of the shell around the openings A 1) is a removablecoupling having a screwthread 61 to fit the neck 0, and a threadedsocket d to screw onto the threaded end of a water-faucet.

D is a flange in the center of the coupling having a central circularaperture d and E E are packing-rings fitting tightly against such flangeD from beneath and also from above. The former of these packing-rings ispressed tightly down against the end of the neck O when the coupling isscrewed into place on the filter-body, in which position it clampsbetween it and the neck O the flanged rim 1) of the cylinder B, when thecylinder is insertedinto the body A.

The function of the top ring E is to produce a tight joint between thecoupling and the end of the faucet to which the filter may be attached.

The body of each cylinder before mentioned is perforated with numerousholes and the bottom or inner end is closed, so that the water can passfrom the outside to the inside, or vice versa, only through thoseperforations.

G is a filtering-diaphragm formed of several layers of boltingloth orfine silk or similar fine fabric laid around and against the inner faceof the cylinder, over the perforations therein, and H is a spiral coilof stiff spring-wire of the same height as the cylinder and of properdiameter to fit within the cylinder and inside the layers of filteringfabric. The function of this coil H is to hold the fabric closelyagainst the interior wall or surface of the surrounding cylinder andkeep the central space at all times open and to prevent the diaphragmfrom collapsing under the pressure of the water, whether such pressurebe from the outside inward or in the opposite direction.

In bringing the fabric into such shape for insertion into thefiltering-cylinder a strip of proper length to produce the requiredthickness or number of layers and in width about twice the length of thecylinder Bis doubled down upon itself, as shown in Fig. 8. The coil Hbeing laid against the folded fabric, the same is evenly rolled or woundclosely around the spiral from end to end, covering the same withseveral turns or layers, as the length of the fabric may afford, afterwhich the edges of the fabric at the bottom are turned up into the endof the spiral and the tube thus formed is inserted into the metalcylinder in the filter-body and pressed down into place.

The nozzle F, that holds the lower cylinder B in place, is threaded tofit the neck 011 the body A and is provided with a packing f X toproduce a tight joint between the neck and the filtering-cylinder.

When the two cylinders B B are in place in the filter-body, they are inline with each other on the vertical diameter of the filterbody andtheir closed ends are turned toward each other inside the body. Thus thewater from the end of the faucet in flowing through the filter passesfirst into the open center of the upper filtering-cylinder B and throughits layers of filtering-cloth and out through the apertures in thecylinder into the surrounding space or chamber, from whence it,

finds an outlet through the lower cylinder B and its contained layers offiltering-cloth into the central space and finally through the nozzle onthe bottom of the filter. In the upper cylinder, therefore, the sedimentor extracted matter is deposited on the inside of the tubularfiltering-diaphragm, composed of cloth, while in the lower cylinder suchmatter is deposited on the outer layer of the cloth, or that surfacewhich lies next to the perforated body of the cylinder, because the flowof water is in the opposite direction, or from the outside to theinside.

The filtering-cloth in both cylinders is readily cleansed from time totime by simply reversing the flow of water through the filter. For thatpurpose both the coupling and the nozzle are detached and thefilter-body is reversed. By unscrewing the body A from the coupling Dand then removing the nozzle F the filter-body is turned end for end andthen united to the couplings and nozzle as.

before, so that the force of the stream when the water is turned on willact in the opposite direction and thus wash off the deposit on thefiltering-cloth in both cylinders. At such time the stream is allowed toflow through the filter until it is well washed and the water runs clearat the nozzle.

The interior of the filter-body is packed with charcoal or other similarfiltering medium where the same is found necessary by the character orcondition of the water to be filtered. Such substance or material isinserted by removing one of the cylinders and then replacing it andscrewing on the coupling when the chamber is filled.

The filtering-cloth in either cylinder is readily renewed withoutdisturbing the cylinder and the surrounding body of charcoal simply bydrawing out the wire spiral and rewrapping it with new cloth.

Having thus fully described myinvention, what I claim as new, and desireto secure by Letters Patent, is

l. The herein-described filter comprising the filter-body A, removablecoupling D, removable nozzle F, perforated cylinders with closed innerends, the removable spiral coils fitted into said cylinders, and thefiltering fabric wound around the said coils before they are inserted inplace and held against the inner walls of the said cylinder by saidcoils when so inserted, combined for operation as set forth.

2. The combination, with the filter-body having openings at top andbottom on its vertical diameter; of the perforated cylinders with closedends fitted into the body and provided with flanges, the removablescrewcoupling D and nozzle F, and the tubular filtering-diaphragm G andinner coils II as a means of holding the said diaphragm against theinner faces of the cylinder for operation, as set forth.

In testimony that I claim the foregoing I have hereunto set my hand andseal.

CHAS. O. MOORE. [n s] Witnesses EDWARD E. OsBoRN,

